Method for detecting drop strength of green pellets under motion state

A drop strength and motion detection technology, applied in the direction of strength characteristics, the use of repetitive force/pulsation force to test the strength of materials, measurement devices, etc. Error, the effect of preventing aggregation

Active Publication Date: 2017-05-10
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to overcome the lack of special green pellet drop strength detection equipment in the prior art, resulting in poor accuracy of the detected green pellet drop strength, and to provide a method for detecting the green pellet drop strength in a moving state , which is specially applied to the detection method of the falling strength of the green pellets when they fall from the motion state, so as to realize the rapid and accurate detection of the falling strength of the green pellets

Method used

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  • Method for detecting drop strength of green pellets under motion state
  • Method for detecting drop strength of green pellets under motion state
  • Method for detecting drop strength of green pellets under motion state

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Embodiment 1

[0082] combine figure 1 , figure 2 , image 3 , Figure 4 , Figure 9 with Figure 10 , the invention pioneered the design of a detection device specially applied to the falling strength of green pellets, which greatly improved the detection efficiency of the falling strength of green pellets while greatly improving the detection accuracy of the falling strength of green pellets. In addition, the present invention provides a brand-new detection method for the falling strength of green pellets, and creatively proposes simultaneous detection of the falling strength of multiple green pellets. The labor intensity of the operator is only 1 / 10 of the original detection method, which greatly improves The detection efficiency of the experimenters has outstanding substantive characteristics and has improved significantly.

[0083] A detection device for the falling strength of green pellets in a moving state according to the present invention, comprising a bottom plate 1, a suppo...

Embodiment 2

[0113] Such as Figure 5 As shown, the basic content of this embodiment is the same as that of Embodiment 1, the difference is that: the pellet dispersing mechanism 401 is a spherical protrusion, and the spherical protrusion extends to the edge of the upper pellet grate hole 403 through an arc surface. The green pellets are automatically dispersed into the upper pellet grate hole 403 under the action of the convexity of the spherical surface, preventing the aggregation of the green pellets during the falling process, and avoiding the mutual collision of the green pellets during the falling process.

[0114] The upper grate plate 404 is provided with 15 upper pellet grate holes 403, the diameter of the upper pellet grate holes 403 is 22 mm, and the diameter of the lower pellet grate holes 503 is 22 mm.

Embodiment 3

[0116] Such as Figure 6 As shown, the basic content of this embodiment is the same as that of Embodiment 1. The difference is that the pellet dispersing mechanism 401 is a cone, and the bottom surface of the cone is connected to the upper surface of the upper grate plate 404. The peripheral edge of the bottom surface of the cone is An upper pellet grate hole 403 is arranged between the pellet baffle plate 402, and the upper pellet grate hole 403 is tangent to the peripheral edge of the conical bottom surface and the pellet baffle plate 402 respectively. Under the action of the cone, the green pellets are automatically dispersed from the side of the cone to the upper pellet grate hole 403, preventing the aggregation of the green pellets during the falling process, and avoiding the mutual collision of the green pellets during the falling process.

[0117] The upper grate plate 404 is provided with 30 upper pellet grate holes 403, the diameter of the upper pellet grate holes 403...

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Abstract

The invention discloses a method for detecting drop strength of green pellets under a motion state and belongs to the technical field of iron mine pellets. The method comprises the following steps: 1) selecting the pellets, namely selecting M 10-18mm green pellets; 2) detecting the dropping of the pellets, switching on a motor control switch of a detection device, rotating a driving motor to drive a base plate to rotate, causing the green pellets fall onto the base plate from a pellet loading part of the detection device, recording the falling times as i, detecting the surfaces of the green pellets, recording the quantity of the green pellets with cracks on the surfaces at the No.i time as mi, and when Sigma mi is less than M, causing the green pellets without cracks fall onto the base plate from the pellet loading part till Sigma mi is equal to M; and 3) treating the drop strength with data, wherein the formula is as shown in the specification. According to the method disclosed by the invention, the simultaneous detection for a plurality of green pellets can be realized and the detection for the drop strength of green pellets under the motion state also can be realized.

Description

technical field [0001] The invention relates to the technical field of iron ore pellet detection, in particular to a method for detecting the falling strength of green pellets in a moving state. Background technique [0002] Pellet ore is a product obtained by the pelletizing method. It is made of finely ground concentrate into a block material that can meet the requirements of iron and steel smelting. The process is: use finely ground iron concentrate or iron-containing powder, additives or bonding The agent is dosed and mixed according to a certain ratio, rolled into pellets by a disc pelletizer, and water is continuously added during the pelletizing process, so that the raw pellets with a diameter of 8-18mm are formed by capillary force and mechanical force of rotating motion. The green pellets are transported to the drying equipment by the belt conveyor, and are hardened and consolidated by drying, roasting or other methods [1] . According to different methods, pellets...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/303G01N3/32
CPCG01N3/303G01N3/32G01N2203/0005G01N2203/0276
Inventor 李家新相冬文魏汝飞杨佳龙龙红明杨乐彪
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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